If you posted an answer here rather than in a private ticket then it would help other people having this problem.

I came here from google after searching Woozone slow import and I’m having the same problem.

So much fancy animations with the bulk csv importer with progress bars and thumbnails for all the images in a pop up window that appears and disappears for each and every product imported means less than 100 products an hour are importing on my 32gb RAM 8 core Xeon dedicated server.